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sergij07 [2.7K]
3 years ago
6

Rational Equations help!

Mathematics
2 answers:
sattari [20]3 years ago
6 0

Answer:

D

Step-by-step explanation:

To find the length of board subtract the piece cut from the length of board

\frac{7}{x-2} - \frac{3}{x+2}

Before subtracting the fractions we require them to have a common denominator.

Multiply the numerator/denominator of the first fraction by (x + 2)

Multiply the numerator/denominator of the second fraction by (x - 2)

= \frac{7(x+2)}{(x-2)(x+2)} - \frac{3(x-2)}{(x-2)(x+2)}

Distribute the numerators leaving the denominator

= \frac{7x+14-3x+6}{(x-2)(x+2)}

= \frac{4x+20}{(x-2)(x+2)}

sladkih [1.3K]3 years ago
6 0
<h2>Answer:</h2>

<u>The correct option is</u><u> D</u>

<h2>Step-by-step explanation:</h2>

See the attached image for solution

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Pls help me with this and pls make sure of ur answer and dont just answer for points plsss it’s important
Lisa [10]

Answer:

Yes

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Step-by-step explanation:

5 0
2 years ago
Could use some help!
Natasha_Volkova [10]


[6, ∞) , x >= 6 so

answer is D. last one

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6 0
3 years ago
Suppose that E and F are two events and that Upper P (Upper E and Upper F )equals0.3 and Upper P (Upper E )equals0.5. What is Up
m_a_m_a [10]

Answer:

P(\frac{F}{E}) =\frac{0.3}{0.5} =0.6

Step-by-step explanation:

<u>Step 1</u>:-

Suppose that E and F are two events and that P(E n F) = 0.3

also given P(E) =0.5

<u>Conditional probability</u>:-

if E₁ and E₂ are two events in a Sample S and P(E₁)≠ 0, then the probability of E₂ , after the event E₁ has occurred, is called the <u>Conditional probability</u>

of the event E₂ given  E₁ and is denoted by

P(\frac{F}{E}) = \frac{P(EnF)}{P(E)}

P(\frac{F}{E}) =\frac{0.3}{0.5} =0.6

6 0
3 years ago
A right triangle has a leg measuring 52 m and a hypotenuse measuring 63 m. find the length of the other leg.
tangare [24]
By Pythagoras Theorem,
the length of the other leg= (63^2-52^2)^1/2
hope this helps :)
4 0
3 years ago
You decide to go to a summer camp and you have to choose five activities to do each day. Your choices include indoor activities
ehidna [41]

Answer: you would have to do alot of stuuff

Step-by-step explanation:

5 0
3 years ago
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